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covalnt

Total questions: 29

Worksheet time: 2hrs 36mins

Name
Class
Date
1.
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
a)
1
1
b)
3
c)
4
d)
6
2.
How many Valence Electrons are on Oxygen
a)
2
b)
7
c)
6
d)
1
3.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
4.
What is the proper name for the covalent compound, CCl4
a)
Carbon Chloride
b)
Carbon Quadrachloride
c)
Carbon Tetrachloride
d)
Carbon Dichloride
5.

The formal charge on carbon in the molecule shown is _______.

a)

0

b)

+1

c)

+2

d)

+3

e)

-1

6.
The electronegativity of C is 2.5, F is 4.0.  predict the character of a C-F bond.
a)
polar covalent
b)
nonpolar covalent
c)
ionic
d)
metallic
7.

Which of the following compounds would have the highest lattice energy?

a)

LiF

b)

MgCl2

c)

CaBr2

d)

C2H6

8.
Which molecule contains bonds of GREATER polarity?
a)
H2O
b)
OF2
9.

This is the Lewis Dot Structure for Carbon Monoxide, a colorless, odorless, and poisonous gas. This structure does not fit the HONC 1234 Rule at all, but does fit the Octet Rule. What is going on here?

a)

The Octet Rule and the HONC 1234 Rule are just rules of thumb. They don't explain the structures of all molecules. Chemists have devised other means for predicting and explaining this structure.

b)

I plan to take AP Chemistry to find out what is going on here.

c)

The body can't easily break the triple covalent bond of carbon monoxide. So when you breath it in it displaces the oxygen (O2) in your lungs. CO is an asphyxiant.

10.
What is the correct chemical name for the molecular compound:  SF4
a)
Sulfur Fluoride
b)
Sulfur TetraFluoride
c)
TetraSulfide Fluoride
d)
Sulfur (IV) Fluoride
11.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
12.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
13.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
14.

SO₃

a)

sulfate

b)

sulfur oxide

c)

sulfur trioxide

d)

monosulfur trioxide

15.

chlorine dioxide

a)

ClO2

b)

ClO

c)

ClO3

d)

HClO2

16.

hexaboron monosilicide

a)

B6Si

b)

BSi

c)

BSi6

d)

B6Si6

17.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
18.
What is the name of C3Cl8 ?
a)
Carbon octachloride
b)
Tricarbon octachloride
c)
Carbon trichloride
d)
Octacarbon trichloride
19.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
20.
What is the ELECTRONIC geometry of the following?
a)
Linear
b)
Trigonal planar
c)
Tetrahedral
d)
Trigonal Bipyramidal
21.
What is the MOLECULAR geometry of the central oxygen?
a)
Linear
b)
Trigonal Planar
c)
Bent
d)
Tetrahedral
22.
What is the Molecular Geometry of the molecule?
a)
Linear
b)
Bent, 120o
c)
Bent, 109.5o
d)
Trigonal Planar
23.
VSEPR stands for ________ theory.
a)
Valence Structure of Electron Pyramids and Regression
b)
Varied Structures of Electrons Paired and Replaced
c)
Varied Shell Energy of Protons and Radiation
d)
Valence Shell Electron Pair Repulsion
24.

What is the molecular shape of H2S?

a)

linear

b)

trigonal planar

c)

bent

d)

tetrahedral

25.
What molecular shape is the structure shown here? (H2O)
a)
tetrahedral
b)
trigonal planar
c)
bent
d)
trigonal pyramidal
26.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
27.
For the structural formula shown, what is the chemical formula?
a)
NO
b)
N2O2
c)
NO2
d)
N2O
28.
What geometry will this molecular structure have?: CCl4
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
29.
What VSEPR structure is this?
a)
Trigonal Pyrimidal
b)
Trigonal Planar
c)
Tetrahedral

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